CN1976186B

CN1976186B - Transverse flux cylinder linear reluctance motor

Info

Publication number: CN1976186B
Application number: CN200610151132XA
Authority: CN
Inventors: 寇宝泉; 邵永实; 邝平健; 李立毅; 程树康
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2006-12-13
Filing date: 2006-12-13
Publication date: 2011-05-11
Anticipated expiration: 2026-12-13
Also published as: CN1976186A

Abstract

A cylindrical linear magnetic resistance motor of horizontal magnetic flow relates to the motor field, which overcomes uneven distribution of exciter field in the prior cylindrical mixed horizontal magnetic motor structure and eddy current loss caused by the parallel of the part of flux path and the motor axial direction. The invention includes a casing (6), an armature core (1), an armature winding (2), a rotor tooth (3), a spaced ring (4) and a shaft (5), wherein each phase of armature core (1) is fixed closely to an internal wall of the casing (6), the rotor tooth (3) and the spaced ring (4) are fixed and jacketed in sequence on the shaft (5) in an alternative arrangement way, 2n numbers of teeth are set on each armature core (1), n is a natural number, each phase of armature core (1) is staggered by an angle of 360degrees/2mn in the peripheral direction, m is a phase number of the motor, the coil winding direction of the armature winding (2) on adjacent tooth of each phase of armature core (1) is reverse, and all coils on the same phase armature winding (2) are series-connected together. The invention can replace the prior cylindrical mixed horizontal resistance motor.

Description

Transverse flux cylinder linear reluctance motor

Technical field

The present invention relates to motor technology, be specifically related to linear reluctance motor.

Background technology

Shown in Figure 9 in the structure of existing traditional cylindrical shape hybrid linear reluctance motor such as the Figure of description, because the influence in core lamination stack gap, make excitation field that permanent magnet produces skewness vertically, weak more apart from the local magnetic field that permanent magnet is far away more, the selection of core lamination stack length and the utilance of material have so just been limited, and part magnetic flux path and motor axially parallel are arranged, this can cause increasing the eddy current loss of motor.In addition, because leakage field is bigger in the groove, makes that the electromagnetic push of motor is saturated very fast, thereby reduced the motor properties volume ratio.

Summary of the invention

For the excitation field skewness and the part magnetic flux path and the problem of motor shaft to the parallel eddy current loss that causes that exist in the structure that solves existing cylindrical shape hybrid linear reluctance motor, the present invention has designed a kind of transverse flux cylinder linear reluctance motor.

Transverse flux cylinder linear reluctance motor is made up of casing 6, armature core 1, armature winding 2, mover tooth 3, spacer ring 4 and axle 5, each phase armature core 1 is close to the inwall of casing 6 and is fixed, spacer ring 4 and mover tooth 3 successively alternately fixed cover on axle 5,2n tooth arranged on the armature core 1 of every phase, and n is a natural number; The armature core 1 of each phase is at the circumferencial direction 360 °/2mn of angle that staggers successively, and m is the number of phases of motor; The coil winding-direction of the armature winding 2 on the adjacent teeth of every phase armature core 1 is opposite, and all coils of the armature winding 2 of homophase is cascaded.

The beneficial effect of transverse flux cylinder linear reluctance motor of the present invention has: (one), air-gap field is distributed vertically be tending towards evenly having improved the stock utilization and the thrust output of motor; (2), path and the motor shaft of magnetic flux can reduce the eddy current loss of motor to vertical in the motor; (3), the employing wire insertion technology identical with common electric rotating machine, reduced the production difficulty, and then reduced production cost.

Description of drawings

Fig. 1 is the structural representation of transverse flux cylinder linear reluctance motor of the present invention; Fig. 2 is the structural representation of the movable structure part of transverse flux cylinder linear reluctance motor of the present invention; Fig. 3 is the schematic diagram of A phase iron core among Fig. 1; Fig. 4 is the schematic diagram of B phase iron core among Fig. 1; Fig. 5 is the schematic diagram of C phase iron core among Fig. 1; Fig. 6 is the A-A cutaway view of Fig. 1; Fig. 7 is the B-B cutaway view of Fig. 1; Fig. 8 is the C-C cutaway view of Fig. 1; Fig. 9 is the structural representation of existing cylindrical shape hybrid linear reluctance motor.

Embodiment

Embodiment one: referring to Fig. 1 to Fig. 8, the transverse flux cylinder linear reluctance motor of present embodiment is made up of casing 6, armature core 1, armature winding 2, mover tooth 3, spacer ring 4 and axle 5, each phase armature core 1 is close to the inwall of casing 6 and is fixed, spacer ring 4 and mover tooth 3 successively alternately fixed cover on axle 5,2n tooth arranged on the armature core 1 of every phase, and n is a natural number; The armature core 1 of each phase is at the circumferencial direction 360 °/2mn of angle that staggers successively, and m is the number of phases of motor; The coil winding-direction of the armature winding 2 on the adjacent teeth of every phase armature core 1 is opposite, and all coils of homophase armature winding 2 is cascaded.

Present embodiment is selected three phase electric machine for use, and 2 teeth are arranged on every phase armature core, i.e. m=3, and n=1,360 °/2mn calculates according to formula, and each phase armature core angle that staggers is 60 °, and every have 3 groups of armature cores 1 to be spaced mutually.First group of coil 21 forward of A phase armature winding are wrapped in A first armature tooth A11 of first group of armature core mutually, A is first tooth armature A21 and the A of second group of armature core mutually on first tooth armature A31 of the 3rd group of armature core mutually, second group of coil 22 of A phase armature winding oppositely is wrapped in A second armature tooth A12 of first group of armature core mutually, A is second armature tooth A22 and the A of second group of armature core mutually on second armature tooth A32 of the 3rd group of armature core mutually, A mutually first group of coil 21 and A mutually second group of coil 22 be cascaded, the B phase is identical with the armature canoe of above-mentioned A phase with the armature canoe of C phase.

The transverse flux cylinder linear reluctance motor of present embodiment, when A phase armature winding is switched on, the circulation path of magnetic flux is: flow out from first armature tooth A11 of first group of armature core of A phase, enter mover tooth 3 through air gap, flow among second armature tooth A12 of the first group of armature core of A phase that produces excitation through air gap then, yoke portion by excitation armature core 1 turns back among first armature tooth A11 of the initial first group of armature core of A phase of magnetic flux again, the direction of motion of the circulation path of this magnetic flux and motor shaft 5 is perpendicular, can increase thrust, reduce the eddy current loss of motor.

The armature core 1 of each phase is to arrange in the angle that circumferencial direction staggers certain successively in the transverse flux cylinder linear reluctance motor, such arrangement architecture can make the rule of armature convenient, can adopt the wire insertion technology of common electric rotating machine to twine armature coil, reduce the production cost of motor.

Embodiment two: the difference of the transverse flux cylinder linear reluctance motor of present embodiment and embodiment one is that armature core 1 and mover tooth 3 all are to be built up by silicon steel sheet.

Embodiment three: the transverse flux cylinder linear reluctance motor of present embodiment and embodiment one or twos' difference is that described spacer ring 4 is magnetic material, the external diameter of spacer ring 4 prevents to enter spacer ring 4 from the magnetic flux that armature tooth flows out less than the external diameter of mover tooth 3.

Embodiment four: the transverse flux cylinder linear reluctance motor of present embodiment and embodiment one or twos' difference is that spacer ring 4 is nonmagnetic substance.So not only can prevent leakage field, also reduce the manufacturing cost of motor.

Claims

1. transverse flux cylinder linear reluctance motor, it is made up of casing (6), armature core (1), armature winding (2), mover tooth (3), spacer ring (4) and axle (5), each phase armature core (1) is close to the inwall of casing (6) and is fixed, spacer ring (4) and mover tooth (3) successively alternately fixed cover on axle (5), it is characterized in that on the armature core (1) of every phase 2n tooth being arranged, n is a natural number; The armature core of each phase (1) is at the circumferencial direction 360 °/2mn of angle that staggers successively, and m is the number of phases of motor; The coil winding-direction of the armature winding (2) on the adjacent teeth of every phase armature core (1) is opposite, and all coils of the armature winding of homophase (2) is cascaded.

2. transverse flux cylinder linear reluctance motor according to claim 1 is characterized in that armature core (1) and mover tooth (3) all are to be built up by silicon steel sheet.

3. transverse flux cylinder linear reluctance motor according to claim 1 is characterized in that spacer ring (4) is a magnetic material, and the external diameter of described spacer ring (4) is less than the external diameter of mover tooth (3).

4. transverse flux cylinder linear reluctance motor according to claim 1 is characterized in that described spacer ring (4) is a nonmagnetic substance.